1. Put the cleaned elbow and enough cold water into the pot and bring it to a boil.
2. Put the oil and broken rock sugar into a wok and heat it on low heat until it melts into brown.
3. Put the elbow in, stir-fry and color.
4. Add cooking wine, soy sauce, soy sauce and enough hot water to boil.
5. After boiling, adjust it to the minimum fire and cover it for about 3 hours until the meat is crisp and rotten.
6. After the elbow is stewed, remove the soup and elbow and pour it into the iron pot to collect the juice.